Automatic creeping formwork reversing device capable of feeding back signals

Abstract

The utility model relates to a creeping formwork automatic reversing device capable of feeding back signals. The automatic reversing problem of the reversing device is solved. The two sides of the symmetrical notches of the left side plate and the right side plate of the box body are connected with the symmetrical first left guide groove and the first right guide groove. The first left-right guide groove is matched with the first left-right guide rail, a horizontal ladder block connected with the first left-right guide rail can penetrate through a notch, shaft holes are formed in a left side plate and a right side plate of the box body and matched with a center shaft of a baffle, and the included angles between the symmetrical upper bearing face and the bottom face of the baffle and the included angles between the symmetrical lower bearing face and the bottom face of the baffle are equal. The upper end of the screw is connected with an output shaft of the stepping motor, the lower end of the screw is matched with the bearing, the threaded sleeve is in threaded fit with the screw, a center shaft on the left side of the baffle is perpendicularly and fixedly connected with the reversing stop lever in a crossed mode, one ends of the two springs are connected with a connecting base on the threaded sleeve, and the other ends of the two springs are fixedly connected with the two ends of the reversing stop lever respectively. The left side plate is provided with upper and lower limit switches, and the upper and lower ends of the reversing stop lever are provided with contacts respectively corresponding to the upper and lower limit switches.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete construction formwork for each project, and relates to a climbing formwork automatic reversing device capable of feedback signals, which is applicable to an automatic reversing device for up and down connection between a hydraulic climbing formwork track and a hydraulic cylinder, and can feedback signals to a climbing formwork control system connected thereto. Background Art

[0002] At present, the concrete pouring construction of high piers and high towers in China mostly adopts the hydraulic climbing formwork technology. Its power source is its own hydraulic jacking system, and the hydraulic jacking system includes a hydraulic cylinder and an up and down reversing box. The reversing box can control or lift the formwork by manually pushing and pulling the reversing lever to the corresponding gear. By the cooperation of the telescopic of the hydraulic system cylinder and the reversing lever, a relative alternating climb can be formed between the formwork and the guide rail, so that the whole hydraulic climbing formwork climbs steadily upward. The hydraulic climbing formwork does not require other lifting equipment during construction, is convenient to operate, has a fast climbing speed and a high safety factor. However, since the operation of manually pushing and pulling the reversing lever requires a relatively high operation skill level of the operator, there is a risk of falling downward in case of a slight mistake. Summary of the Invention

[0003] The purpose of the utility model is to provide a climbing formwork automatic reversing device which is simple and safe to operate, can automatically reverse and can feedback signals.

[0004] The utility model is realized as follows:

[0005] The upper cover plate 1 of the box body is connected to the upper connecting piece 3. The upper connecting piece is hinged to the climbing formwork. The shaft of the symmetric lower connecting holes 4 on the left side plate 5 and the right side plate 6 of the box body is hinged to the first oil cylinder. The relative two sides of the symmetric notches 7 on the upper and lower parts of the upper cover plate 1 and the lower cover plate 2 of the box body are connected to the symmetric first left and right guide grooves 8. The first left and right guide grooves 8 cooperate with the first left and right guide rails 10. The horizontal ladder stops 25 connecting the first left and right guide rails 10 can pass through the notches 7. The left and right side plates 5 and 6 of the box body have shaft holes that cooperate with the central shaft 12 of the baffle 24. The included angles between the symmetric upper and lower load-bearing surfaces of the baffle 24 and the bottom surface are equal, and the bottom surface can move between the first left and right guide rails. There are upper and lower supports 13 and 14 on the left side plate. The stepping motor 15 is located on the upper support 13, and the bearing 16 is located on the lower support 14. The upper end of the screw 17 is connected to the output shaft of the stepping motor 15, and the lower end of the screw 17 cooperates with the bearing 16. The nut sleeve 18 is in threaded cooperation with the screw 17. The central shaft 12 on the left side of the baffle 24 is fixedly connected to the reversing shift lever 19 perpendicularly and crosswise. One ends of two springs 20 of equal length when contracted are connected to the connecting seat on the nut sleeve 18, and the other ends are respectively fixedly connected to the two ends of the reversing shift lever 19. There are upper limit switches 21 and lower limit switches 22 on the left side plate. The upper and lower ends of the reversing shift lever 19 have contacts 23 that correspond to the upper limit switch 21 and the lower limit switch 22 respectively. When the stepping motor 15 rotates forward, the nut sleeve 18 moves downward, and the lower load-bearing surface of the baffle 24 abuts against the top of the horizontal ladder stop 25. The reversing device climbs upward relative to the first left and right guide rails under the drive of the first oil cylinder connected thereto. When the stepping motor 15 rotates reversely, the nut sleeve 18 moves upward, and the upper load-bearing surface of the baffle 24 abuts against the bottom of the horizontal ladder stop 25. The first left and right guide rails 10 climb upward relative to the reversing device under the drive of the second oil cylinder connected thereto.

[0006] The upper limit switch 21 and the lower limit switch 22 are connected to the input end of the programmable controller, and the control end of the stepping motor 15 is connected to the output end of the programmable controller.

[0007] The second left and right guide rails connected to the upper and lower supports cooperate with the second left and right guide grooves on the nut sleeve 18.

[0008] The advantages of the present utility model are as follows:

[0009] (1) The stepping motor 15 is adopted to provide power to control the reversing shift lever 19, providing an electric control basis.

[0010] (2) The stepping motor pushes the nut sleeve 18 to slide horizontally. The up and down movement of the sliding nut sleeve 18 drives the reversing shift lever 19 to reverse through two springs in the forward or reverse direction, and the guide rails and guide grooves of the nut sleeve 18 can be omitted.

[0011] (3) The limit switches monitor and feedback the in-place situation of the reversing shift lever 19 and monitor and feedback the completion situation of the action.

[0012] (4) The limit switch controls the detection and feedback, and warns when the sliding distance between the stepping motor and the screw sleeve 18 exceeds the limit.

[0013] (5) Two springs pull the reversing lever 19, which releases the power slowly, makes the operation controllable, convenient for maintenance, has a response time buffer, and avoids the sudden jamming and blocking phenomenon caused by direct power transmission.

[0014] (6) Improve the automation level and reduce the dependence on the operating skills of the operators.

[0015] (7) The overall system controls multiple sets of hydraulic climbing formwork to reverse and climb, which can improve the construction speed.

[0016] The automatic reversing is realized by motor drive, so that the alternating actions of the hydraulic climbing formwork rising upward or falling downward are automatically connected in reverse without manual operation by personnel, which improves the automation level of the whole set of hydraulic climbing formwork device. At the same time, sensors such as limit switches in the device monitor the completion of the reversing action in real time, feedback the signal of the action completion, warn of the occurrence of over-limit actions, and stop the over-limit operation in time, which improves the intelligent level of the whole set of hydraulic climbing formwork device. Description of the Drawings

[0017] Figure 1 It is a three-dimensional view of the present utility model.

[0018] Figure 2 It is one of the transmission structure diagrams of the present utility model.

[0019] Figure 3 It is the second transmission structure diagram of the present utility model. Detailed Embodiments

[0020] The upper cover plate 1 of the box body is connected to the upper connecting piece 3. The upper connecting piece is hinged to the climbing formwork. The shaft of the symmetric lower connecting holes 4 on the left side plate 5 and the right side plate 6 of the box body is hinged to the first oil cylinder. The relative two sides of the symmetric notches 7 on the upper and lower cover plates 1 and 2 of the box body are connected to the symmetric first left and right guide grooves 8. The first left and right guide grooves 8 cooperate with the first left and right guide rails 10. The horizontal ladder stops 25 connecting the first left and right guide rails 10 can pass through the notch 7. The left and right side plates 5 and 6 of the box body have shaft holes that cooperate with the central shaft 12 of the baffle 24. The included angles between the symmetric upper and lower bearing surfaces of the baffle 24 and the bottom surface are equal, and the bottom surface can move between the first left and right guide rails. There are upper and lower supports 13 and 14 on the left side plate. The stepping motor 15 is located on the upper support 13, and the bearing 16 is located on the lower support 14. The upper end of the screw rod 17 is connected to the output shaft of the stepping motor 15, and the lower end of the screw rod 17 cooperates with the bearing 16. The nut sleeve 18 is in threaded cooperation with the screw rod 17. The central shaft 12 on the left side of the baffle 24 is fixedly connected perpendicular to and intersecting with the reversing shift lever 19. One ends of two springs 20 of equal length when contracted are connected to the connecting seat on the nut sleeve 18, and the other ends are respectively fixedly connected to both ends of the reversing shift lever 19. There are upper limit switches 21 and lower limit switches 22 on the left side plate. The upper and lower ends of the reversing shift lever 19 have contacts 23 that correspond to the upper limit switch 21 and the lower limit switch 22 respectively. When the stepping motor 15 rotates forward, the nut sleeve 18 moves downward, and the lower bearing surface of the baffle 24 abuts against the top of the horizontal ladder stop 25. The reversing device climbs upward relative to the first left and right guide rails under the drive of the first oil cylinder connected to it. When the stepping motor 15 rotates reversely, the nut sleeve 18 moves upward, and the upper bearing surface of the baffle 24 abuts against the bottom of the horizontal ladder stop 25. The first left and right guide rails 10 climb upward relative to the reversing device under the drive of the second oil cylinder connected to them.

[0021] The upper limit switch 21 and the lower limit switch 22 are connected to the input end of the programmable controller, and the control end of the stepping motor 15 is connected to the output end of the programmable controller.

[0022] The working process is as follows:

[0023] 1. Install all components and turn on the power.

[0024] 2. Press the upward operation button to start the forward rotation of the stepping motor 15.

[0025] 3. The forward rotation of the stepping motor drives the screw rod 17 to rotate forward.

[0026] 4. The screw rod 17 drives the nut sleeve 18 to move upward.

[0027] 5. The two springs 20 on the nut sleeve 18 pull the reversing shift lever 19 to swing forward.

[0028] 6. The reversing shift lever drives the reversing block 24 to rotate forward until it touches the upper limit switch 21 and stops, reaching the specified reversing gear position to complete upward reversing (such asFigure 2 as shown

[0029] 7. At the same time, the upper limit switch 21 feeds back the signal of the working state to the programmable logic controller of the climbing formwork control system. The climbing formwork control system cuts off the power supply of the stepping motor 15 and stops and maintains the commutation gear state.

[0030] 8. Press the downward operation button to start the reverse rotation of the stepping motor 15.

[0031] 9. The reverse rotation of the stepping motor drives the screw 17 to rotate in the reverse direction.

[0032] 10. The screw 17 drives the nut sleeve 18 to move downward.

[0033] 11. The two springs 20 on the nut sleeve 18 pull the commutation gear lever 19 to swing in the reverse direction.

[0034] 12. The commutation gear lever 19 drives the commutation block 24 to rotate in the reverse direction until it contacts the lower limit switch 22 and stops, reaching the specified commutation gear position, and completing the downward commutation (as Figure 3 shown

[0035] 13. At the same time, the lower limit switch 23 feeds back the signal of the working state to the climbing formwork control system. The climbing formwork control system cuts off the power supply of the stepping motor and stops and maintains the commutation gear state.

Claims

1. The automatic reversing device of the climbing mold capable of feedback signal is characterized by: The upper cover plate (1) of the box body is connected to the upper connecting member (3), the upper connecting member is hinged to the climbing formwork frame, and is hinged to the first oil cylinder through the axis of the symmetrical lower connecting holes (4) on the left side plate (5) and the right side plate (6) of the box body. The two sides of the upper and lower symmetrical notches (7) of the upper cover plate (1) and the lower cover plate (2) of the box body are connected to the symmetrical first left and right guide grooves (8), and the first left and right guide grooves (8) cooperate with the first left and right guide rails (10) of the climbing formwork frame to connect the first left and right guide rails. The horizontal ladder stopper (25) can pass through the slot, the left and right side plates of the box body have shaft holes that match the central axis (12) of the baffle (24), the symmetrical upper and lower bearing surfaces of the baffle are equal in angle to the bottom surface, and the bottom surface can move between the left and right guide rails, the left side plate has an upper support (13) and a lower support (14), the stepper motor (15) is located on the upper support, the bearing (16) is located on the lower support, the upper end of the screw (17) is connected to the output shaft of the stepper motor, and the lower end of the screw matches the bearing The screw sleeve (18) and the screw rod (17) are threadedly matched, the central axis (12) on the left side of the baffle (24) is vertically crossed and fixedly connected to the reversing gear rod (19), one end of two springs (20) of equal length when contracted is connected to the connecting seat on the screw sleeve (18), and the other end of the spring (20) is respectively fixedly connected to the two ends of the reversing gear rod, an upper limit switch (21) and a lower limit switch (22) are provided on the left side plate, and contacts (23) are provided at the upper and lower ends of the reversing gear rod (19) respectively corresponding to the upper limit switch and the lower limit switch. When the stepper motor rotates forward, the screw sleeve (18) moves downward, the lower bearing surface of the baffle is against the top of the horizontal ladder stop (25), and the reversing device climbs upward relative to the first left and right guide rails under the drive of the first oil cylinder connected thereto, and when the stepper motor reverses, the screw sleeve moves upward, the upper bearing surface of the baffle is against the bottom of the horizontal ladder stop, and the first left and right guide rails climb upward relative to the reversing device under the drive of the second oil cylinder connected thereto.

2. The climbing mold automatic reversing device capable of feedback signal according to claim 1 is characterized in that: The upper limit switch and the lower limit switch are connected to the input end of the programmable controller, and the control end of the stepping motor is connected to the output end of the programmable controller.

3. The climbing mold automatic reversing device capable of feedback signal according to claim 1 is characterized in that: The second left and right guide rails connected to the upper and lower supports cooperate with the second left and right guide grooves on the screw sleeve (18).

Images